Where will i be able to find information about project change control processes and also any advice on this subject will be highly appreciated Saving Changes...
Project change control is addressed in any basic project management text. If you are looking for something quick, take a look at "The Project Management Memory Jogger". Any good PM textbook will include change-control processes. Kerzner, Meridith/Mantell, and many others have put together good textbooks that include the topic. The PMBOK Guide and PRINCE2 include a lot of information on the topic.
Let us know your particular challenges and industry, and perhaps I can offer some more specific advice.